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@langchain/langgraph-checkpoint

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Library with base interfaces for LangGraph checkpoint savers.

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import { BaseStore, type Item, type Operation, OperationResults } from "./base.js"; export declare class AsyncBatchedStore extends BaseStore { lg_name: string; protected store: BaseStore; private queue; private nextKey; private running; private processingTask; constructor(store: BaseStore); get isRunning(): boolean; /** * @ignore * Batch is not implemented here as we're only extending `BaseStore` * to allow it to be passed where `BaseStore` is expected, and implement * the convenience methods (get, search, put, delete). */ batch<Op extends Operation[]>(_operations: Op): Promise<OperationResults<Op>>; get(namespace: string[], key: string): Promise<Item | null>; search(namespacePrefix: string[], options?: { filter?: Record<string, any>; limit?: number; offset?: number; query?: string; }): Promise<Item[]>; put(namespace: string[], key: string, value: Record<string, any>): Promise<void>; delete(namespace: string[], key: string): Promise<void>; start(): void; stop(): Promise<void>; private enqueueOperation; private processBatchQueue; toJSON(): { queue: Map<number, { operation: Operation; resolve: (value: any) => void; reject: (reason?: any) => void; }>; nextKey: number; running: boolean; store: string; }; }